1、 ETSI EN 302 878-1 V1.1.1 (2011-11) Access, Terminals, Transmission and Multiplexing (ATTM); Third Generation Transmission Systems for Interactive Cable Television Services - IP Cable Modems; Part 1: General; DOCSIS 3.0 European Standard ETSI ETSI EN 302 878-1 V1.1.1 (2011-11) 2Reference DEN/ATTM-00
2、3006-1 Keywords access, broadband, cable, data, IP, IPCable, modem ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/
3、88 Important notice Individual copies of the present document can be downloaded from: http:/www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference versio
4、n is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of statu
5、s. Information on the current status of this and other ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Notificati
6、on No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2011. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI re
7、gistered for the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI EN 302 878-1 V1.1.1 (2011-11) 3Contents Intel
8、lectual Property Rights 4g3Foreword . 4g31 Scope 5g31.1 Technology Options . 5g31.2 Background 5g31.2.1 Broadband Access Network 5g31.2.2 Network and System Architecture 6g31.2.2.1 The DOCSIS Network 6g31.2.3 Service Goals 7g31.2.4 Statement of Compatibility . 7g31.2.5 Reference Architecture . 7g32
9、References 8g32.1 Normative references . 8g32.2 Informative references 8g33 Definitions and abbreviations . 9g33.1 Definitions 9g33.2 Abbreviations . 9g34 Overview of the multi-part deliverable 9g34.1 Part 1: General; DOCSIS 3.0 9g34.2 Part 2: Physical Layer; DOCSIS 3.0 9g34.3 Part 3: Downstream Rad
10、io Frequency Interface; DOCSIS 3.0. 10g34.4 Part 4: MAC and Upper Layer Protocols; DOCSIS 3.0 . 10g34.5 Part 5: Security Services; DOCSIS 3.0 10g3History 11g3ETSI ETSI EN 302 878-1 V1.1.1 (2011-11) 4Intellectual Property Rights IPRs essential or potentially essential to the present document may have
11、 been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standar
12、ds“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/ipr.etsi.org). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not refere
13、nced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This European Standard (EN) has been produced by ETSI Technical Committee Access, Terminals, Transmission and Multiplexing (ATTM). The present document is
14、part 1 of a multi-part deliverable covering the Third Generation Transmission Systems for Interactive Cable Television Services - IP Cable Modems, as identified below: Part 1: “General; DOCSIS 3.0“; Part 2: “Physical Layer; DOCSIS 3.0“; Part 3: “Downstream Radio Frequency Interface; DOCSIS 3.0“; Par
15、t 4: “MAC and Upper Layer Protocols; DOCSIS 3.0“; Part 5: “Security Services; DOCSIS 3.0“. This multi-part deliverable is based on the CableLabs DOCSIS set of specifications which are also standardized in the United States by SCTE. Table 1 indicates for the specifications in this series the equivale
16、nt CableLabs DOCSIS specifications and SCTE Standards. Table 1 ETSI Standards CableLabs DOCSIS Specifications SCTE Standards EN 302 878-1 (V1.1.1) None None EN 302 878-2 1 (V1.1.1) CM-SP-PHYv3.0-I09-101008 i.7 ANSI/SCTE 135-1 i.3 EN 302 878-3 2 (V1.1.1) CM-SP-DRFI-I10-100611 i.8 ANSI/SCTE 133 i.6 EN
17、 302 878-4 3 (V1.1.1) CM-SP-MULPIv3.0-I14-101008 i.9 ANSI/SCTE 135-2 i.4 EN 302 878-5 4 (V1.1.1) CM-SP-SECv3.0-I13-100611 i.10 ANSI/SCTE 135-3 i.5 Historically, these were also standardized in the ITU-T Recommendations J.210 i.1 and the J.221.x series i.2. National transposition dates Date of adopti
18、on of this EN: 14 November 2011 Date of latest announcement of this EN (doa): 29 February 2012 Date of latest publication of new National Standard or endorsement of this EN (dop/e): 31 August 2012 Date of withdrawal of any conflicting National Standard (dow): 31 August 2012 ETSI ETSI EN 302 878-1 V1
19、.1.1 (2011-11) 51 Scope The present document is part 1 of a multi-part series of specifications that define the third generation of high-speed data-over-cable systems. This series was developed for the benefit of the cable industry, and includes contributions by operators and vendors from North Amer
20、ica, Europe, and other regions. All documents in this series are required to implement the third-generation transmission system for interactive cable television services. 1.1 Technology Options This multi-part deliverable includes two technology options that have equal priority and are not required
21、to be interoperable. One technology option is based on the downstream multi-program television distribution that is deployed in North America using 6 MHz channelling. The other technology option is based on the corresponding European multi-program television distribution. Both options have the same
22、status. Compliance with the present document requires compliance with the one or the other of these implementations, not with both. It is not required that equipment built to one option will interoperate with equipment built to the other. These technology options allow operators flexibility in manda
23、ted areas of operation, including any frequency planning, EMC (electromagnetic compatibility), and safety requirements. For instance, the 6 MHz downstream based option defined in EN 302 878-2 1 might be deployable within an 8 MHz channel plan. Backwards compatibility with earlier versions of that te
24、chnology is only ensured within the same technology options referred to above and not between the two options. 1.2 Background 1.2.1 Broadband Access Network A coaxial-based broadband access network is assumed. This may take the form of either an all-coax or Hybrid Fibre/Coaxial network. The generic
25、term “cable network“ is used here to cover all cases. A cable network uses a tree-and-branch architecture with analog transmission. The key functional characteristics assumed in the present document are the following: Two-way transmission. A maximum optical/electrical spacing between the CMTS and th
26、e most distant CM of 100 miles (160 km) in each direction, although typical maximum separation may be 10 miles to 15 miles (16 km to 24 km). A maximum differential optical/electrical spacing between the CMTS and the closest and most distant modems of 100 miles (160 km) in each direction, although th
27、is would typically be limited to 15 miles (24 km). At a propagation velocity in fibre of approximately 1,5 ns/ft (5 ns/m), 100 miles (160 km) of fibre in each direction results in a round-trip delay of approximately 1,6 ms. ETSI ETSI EN 302 878-1 V1.1.1 (2011-11) 61.2.2 Network and System Architectu
28、re 1.2.2.1 The DOCSIS Network The elements that participate in the provisioning of DOCSIS services are shown in figure 1. ProvisioningSystemsIPv6CPEIPv4CPEBack Office Network HFC NetworkHome NetworkCMTSCMIPv6CPEIPv4CPECMNMSHFCFigure 1: The DOCSIS Network The CM connects to the operators cable networ
29、k and to a home network, bridging packets between them. Many CPE devices can connect to the CMs LAN interfaces. CPE devices can be embedded with the CM in a single device, or they can be separate, standalone devices (as shown in figure 1). CPE devices may use IPv4, IPv6, or both forms of IP addressi
30、ng. Examples of typical CPE devices are home routers, set-top devices, personal computers, etc. The CMTS connects the operators back office and core network with the cable network. Its main function is to forward packets between these two domains, and between upstream and downstream channels on the
31、cable network. Various applications are used in the back office to provide configuration and other support to the devices on the DOCSIS network. These applications use IPv4 and/or IPv6, as appropriate to the particular operators deployment. Applications include: Provisioning Systems The DHCP servers
32、 provide the CM with initial configuration information, including IP address(es), when the CM boots. The Config File server is used to download configuration files to CMs when they boot. Configuration files are in binary format and permit the configuration of the CMs parameters. The Software Downloa
33、d server is used to download software upgrades to the CM. The Time Protocol server provides Time Protocol clients, typically CMs, with the current time of day. Certificate Revocation server provides certificate status. NMS The SNMP Manager allows the operator to configure and monitor SNMP Agents, ty
34、pically the CM and the CMTS. The Syslog server collects messages pertaining to the operation of devices. The IPDR Collector server allows the operator to collect bulk statistics in an efficient manner. ETSI ETSI EN 302 878-1 V1.1.1 (2011-11) 71.2.3 Service Goals As cable operators have widely deploy
35、ed high-speed data services on cable television systems, the demand for bandwidth has increased. Additionally, networks have scaled to such a degree that IPv4 address space limitations have become a constraint on network operations. To this end, it was decided to add new features to the DOCSIS speci
36、fication for the purpose of increasing channel capacity, enhancing network security, expanding addressability of network elements, and deploying new service offerings. The DOCSIS system allows transparent bi-directional transfer of Internet Protocol (IP) traffic, between the cable system head-end an
37、d customer locations, over an all-coaxial or Hybrid Fibre/Coaxial (HFC) cable network. This is shown in simplified form in figure 2. Figure 2: Transparent IP Traffic Through the Data-Over-Cable System 1.2.4 Statement of Compatibility This specification defines the DOCSIS 3.0 interface. Prior generat
38、ions of DOCSIS were commonly referred to as DOCSIS 1.0, 1.1 and 2.0. DOCSIS 3.0 is backward-compatible with equipment built to the previous specifications. DOCSIS 3.0-compliant CMs interoperate seamlessly with DOCSIS 2.0, DOCSIS 1.1 and DOCSIS 1.0 CMTSs. DOCSIS 3.0-compliant CMTSs seamlessly support
39、 DOCSIS 2.0, DOCSIS 1.1 and DOCSIS 1.0 CMs. Refer to EN 302 878-5 4 for BPI/BPI+ compatibility requirements. 1.2.5 Reference Architecture Figure 3: Data-over-Cable Reference Architecture ETSI ETSI EN 302 878-1 V1.1.1 (2011-11) 8The reference architecture for data-over-cable services and interfaces i
40、s shown in figure 3. The lighter shaded areas are related functionality, but are out of the scope of DOCSIS specifications. Boxes represent functional components and arrows represent interfaces. 2 References References are either specific (identified by date of publication and/or edition number or v
41、ersion number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (including any amendments) applies. Referenced documents which are not found to be publicly available in the expected location might be f
42、ound at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee their long term validity. 2.1 Normative references The following referenced documents are necessary for the application of the present document. 1 E
43、TSI EN 302 878-2: “Access, Terminals, Transmission and Multiplexing (ATTM); Third Generation Transmission Systems for Interactive Cable Television Services - IP Cable Modems; Part 2: Physical Layer; DOCSIS 3.0“. 2 ETSI EN 302 878-3: “Access, Terminals, Transmission and Multiplexing (ATTM); Third Gen
44、eration Transmission Systems for Interactive Cable Television Services - IP Cable Modems; Part 3: Downstream Radio Frequency Interface; DOCSIS 3.0“. 3 ETSI EN 302 878-4: “Access, Terminals, Transmission and Multiplexing (ATTM); Third Generation Transmission Systems for Interactive Cable Television S
45、ervices - IP Cable Modems; Part 4: MAC and Upper Layer Protocols; DOCSIS 3.0“. 4 ETSI EN 302 878-5: “Access, Terminals, Transmission and Multiplexing (ATTM); Third Generation Transmission Systems for Interactive Cable Television Services - IP Cable Modems; Part 5: Security Services; DOCSIS 3.0“. 2.2
46、 Informative references The following referenced documents are not necessary for the application of the present document but they assist the user with regard to a particular subject area. i.1 ITU-T Recommendation J.210: “Downstream RF Interface for Cable Modem Termination Systems“. i.2 ITU-T Recomme
47、ndation J.221 (series): “IP cable modems“. i.3 ANSI/SCTE 135-1: “DOCSIS 3.0 Part 1: Physical Layer Specification“. i.4 ANSI/SCTE 135-2: “DOCSIS 3.0 Part 2: MAC and Upper Layer Protocols“. i.5 ANSI/SCTE 135-3: “DOCSIS 3.0 Part 3: Security Services“. i.6 ANSI/SCTE 133: “Downstream RF Interface for Cab
48、le Modem Termination Systems“. i.7 Cable Television Laboratories, Inc., CM-SP-PHYv3.0-I09-101008: “Data Over Cable Service Interface Specifications - DOCSIS 3.0 - Physical Layer Specification“. i.8 Cable Television Laboratories, Inc., CM-SP-DRFI-I10-100611: “Data-Over-Cable Service Interface Specifi
49、cations - Downstream RF Interface Specification“. ETSI ETSI EN 302 878-1 V1.1.1 (2011-11) 9i.9 Cable Television Laboratories, Inc., CM-SP-MULPIv3.0-I14-101008: “Data-Over-Cable Service Interface Specifications - DOCSIS 3.0 - MAC and Upper Layer Protocols Interface Specification“. i.10 Cable Television Laboratories, Inc., CM-SP-SECv3.0-I13-100611: “Data-Over-Cable Service Interface Specifications - DOCSIS 3.0 - Security Specification“. 3 Definitions and abbreviations 3.1 Definitions For the
